2FA Authenticator App is a simple and free application for Two Factor Authentication (2FA) which generates Time-based One-time Passwords (TOTP) and PUSH authentication*. 2FAS App helps you protect your account from hackers by adding an additional layer of security. With the 2FAS Backup system, you can store all your Keys in the cloud and access them when needed. In case you lose or damage your phone, you simply install 2FAS App on your new device to get access to your Keys.

For your convenience, you can either use a QR Code or enter your secret key manually.

*PUSH authentication is compatible only with services integrated through provider.

Notice: Application supports only 6-digit TOTP factor.

Why 2FAS APP is the most secure and private Two Factor Authentication app?

-Two Factor Authentication
2FA doubles the account's security by requiring a regular password and a Time-based One-time Password (TOTP). 2FAS App generates TOTP on the user’s device.

-2FAS Backup
We are developing a remote backup service (RBS) function that will allow you to store service keys in a secure 2FAS Backup based on a cloud and recover it if you lose your phone. This feature will also allow you to generate codes on different devices (cross-device sharing).

-Authorize with Touch ID or Face ID
Confirm your identity with the application using Touch ID or Face ID and generate one time tokens required to log in to your online accounts.

-Sync across devices
Once configured with an online account, the application works efficiently on various mobile devices and allows you to log in from several devices at once.

-No password stored
The application generates Time-based One-time Passwords (TOTP), stored on the user's phone without internet access. This solution dramatically increases login security.

If you like 2FAS and want to learn more:

-Visit our www
-Follow us on Twitter
-Like us on Facebook
-Subscribe on YouTube

What’s New

Version 3.11.0

We've fixed a lot of small and annoying issues. Also added new services.

Ratings and Reviews

4.7 out of 5
11.3K Ratings

11.3K Ratings

CowboyDiplomacy1 ,

Exactly What I Wanted!

I was getting fed up with all of the cheap React Native and Cordova 2FA apps. Was about to write me own, how hard can it be? Did one more search to see if I could find something that was native iOS and supported iCloud, and tried this app out. IT’S EXACTLY WHAT I WANTED! To the point, not always trying to sell me stuff, high quality native iOS, simple, and stores data on iCloud instead of some mysterious “just trust us 😉” third party service. I have only a single gripe, but extremely minor. Could you please make the 2FA codes collapse to hide until clicked on, and style each cell in the UITableView to be more like the bubble tiles seen on the App Store’s home view? You’re awesome!

Developer Response ,

Thank you! You'll be happy to hear that we are currently working on feature you've mentioned :)

Pull Weeds ,

Works flawlessly

Never have had a problem with this app (2FAS Auth). So nice not to be bombarded with useless ads and information within the app. Never had a problem with getting codes or using them. My phone disappeared for several hours earlier this year when my husband was in the hospital. So thankful I had this app and use it for really important information. For whatever reason, someone “found” my phone & turned it in to Security. If you want extra security on your devices, this app is a great solution!

Developer Response ,

It is delightful to hear such positive words and it’s always a pleasure to serve our users.

Jack Ver Straate ,

Amazing Application! (Also Request for Devs)

Hey, first of all love the app! Light years better than Google’s and Microsoft’s, and the interface is so sleek! I really do love it! I do have one request though, if you guys could add the brand icon for Keeper Password Manager that would be amazing! Totally not expecting it lol, but that would be cool if you can, or maybe add a feature to import .svg files to make custom brand icons? Again, thanks for creating this amazing app!

App Privacy

The developer, Two Factor Authentication Service Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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